In this question how did you tale Alpha value 0.25

Forecasting.

Lakeside Hospital has used a 9 month, moving average forecasting method to predict drug and surgical dressing inventory requirements. 

Using the previous moving average data, convert to an exponential smoothing forecast for month 33.

Month	24	25	26	27	28	29	30	31	32
Demand	78	65	90	71	80	101	84	60	73